Joseki WrapperHub is a registry for versioned, tested, and governed LLM behavior packages. Package prompts, fine-tune recipes, adapters, evals, and safety policies in one reusable format.
The problem
Teams need reusable, testable, portable behavior across models, apps, and organizations. But today, prompts live in docs. Fine-tune configs sit in notebooks. Eval suites are buried in repos. Safety rules exist only in vendor dashboards.
Every model switch means rebuilding from scratch. Every handoff means copying prompts into Slack. Every audit means digging through git history. There is no standard way to package, version, or share the full behavior of an LLM deployment.
The solution
Joseki WrapperHub lets you create Behavior Packages — versioned bundles that capture everything about how an LLM should behave.
PromptSpec
System prompts, templates, and examples
FineTuneSpec
Training recipes and configurations
EvalSpec
Evaluation suites and benchmarks
SafetySpec
Safety policies and guardrails
LicenseSpec
Usage terms and attribution
InstallSpec
Runtime setup and dependencies
EvidencePack
Provenance and compliance artifacts
What you can build
Reusable prompts with examples, metadata, and version history. Stop copying prompts between projects — install them.
Portable training recipes for closed and open model providers. One recipe, any backend. Reproducible by default.
Share LoRA adapters with compatible model manifests, artifact hashes, and runtime instructions.
Validate packages with eval suites, safety scans, license checks, and provenance tracking.
For developers
Install, inspect, and evaluate behavior packages before using them in production.
Built for trust
Joseki is built for teams that care about security, repeatability, and compliance. Every package carries its own evidence trail.
Package signing with verifiable authorship
Artifact hashes for tamper-proof integrity
License metadata for compliant distribution
Automated safety checks on every version
Evidence packs for audit and compliance
Early access
Join the waitlist to be among the first to publish and install behavior packages.